Targeted interruption of the psaA and psaB genes encoding the reaction-centre proteins of photosystem I in the filamentous cyanobacterium Anabaena variabilis ATCC 29413.

Targeted interruption of the psaA and psaB genes encoding the reaction-centre proteins of photosystem I in the filamentous cyanobacterium Anabaena variabilis ATCC 29413.